python变长参数的使用场景

#coding:utf8
 
def powersum(power, **args):
    print type(args)
    print "args is %s" % args
    for k,v in args.items():
        print k,":",v
    print
 
y = {'age':18, 'name':'xxmcf'}
 
powersum(0, **y)
 
powersum(0, args=y)